Ebee c



(No Model.)

1-]. G. BYAM.

SASH LIFT.

No. 363,726. Patented May 24, 1887.-

UNITED STATES PATENT OFFICE.

EBER G. BYAM, OF ROCHESTER, NEW YORK, ASSIGNOR OF TWO-THIRDS TO JOHN A. STEWART AND JAMES S. BAKER, BOTH OF SAME PLACE.

LIFT.

SPECIFICATION forming part of Letters Patent No. 363,726, dated May 24, 1887.

Application filed April 16, 1887. Serial No. 235,013. (No model.)

To all whom it may concern.-

Be it known that I, EBER O. BYAM, of Rochester, in the county of Monroe and State of New York, have invented a certain new and useful Improvement in Sash-Lifts; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the drawings accompanying this application.

My improvement relates to devices attached to sashes for thepurpose of raising and lower ing the same. The side piece of an ordinary sash is provided with a bevel at the edge; and the object is to so construct the sash-lift that, while it fits this bevel orincline, it still stands within the plane of the surface of the sash. so that one sash can run past the other in being raised and lowered without impediment from the sash-lift. It is particularly applicable to the upper sash, which has to run up and down behind the lower one; but it is also applicable to the lower sash, and is of advantage where screen-frames and inside blinds are used, as it does not interfere with the raising and lowering of the sash when such screens and blinds are employed.

In the drawings, Figures 1 and 2 are perspective views of the device,showing rights and lefts. Fig. 3 is a perspective view of one corner of the meeting-rails of two sashes with the device applied to the upper sash. Fig. 4 is a horizontal section of Fig. 2 in line at 00, looking downward.

A and A indicate the improved sash-lift in rights and lefts. Each of these devices is a finger-piece 0f right-angled form,and provided with a screw-hole, by which it can bescrewed to the sash. The horizontal part a projects inward and forms the finger-piece for raising the sash. The vertical part'b rests against the inner edge of the vertical side piece of the sash, and is secured thereto by a screw, as shown.

The inner edge of the sash is made withran inclined head or bevel, 0,- hence, if the sash- 5 lift A were made with a square back side, the finger-piece a would project outward at an angle to the sash and would stand out beyond the face of the same, so that if applied to the upper sash it could not run up and down behind the lower one, or if applied to the lower sash it could not run behind inside blinds or screen frames placed in the windows. To remedy these difficulties the back of the sashlift A is made angular, as shown at 01, so that when fitted to the inclined bead or bevel 0 the arm a of the. device will stand parallel with the window and within the plane of the surface of the sash, as shown in Fig. 4.

By the means above described the device 50 answers all the purposes of an effective sashlift, and enables the upper sash to run up and down behind the lower one, or the lower sash to run up and down behind screens and blinds without impediment.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is 

